Struwe, Michael. <br/><br/>
Variational methods :  applications to nonlinear partial differential equations and hamiltonian systems. 

 - Fourth edition 
 - Berlin :  Springer,   2008. 
 - xx, 302 pages ;  illustrations. 
<br/><br/>  
<br/><br/>References: pages 277-300. Includes index. 
<br/><br/><label>ISBN: </label>9783540740124 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics.<br/>Hamiltonian systems.<br/>Calculus of variations.
<br/><br/><label>Dewey Class. No.: </label>515.64